1 :

Hint : 💧 Cool + swollen site = infiltration → stop and elevate

Correct Answers:

  • Discontinue IV, elevate limb, apply compress, restart in new site


Rationale :

💉 The described symptoms — swelling, coolness, pallor, and slow infusion — indicate IV infiltration, where fluid leaks into surrounding tissue instead of the vein.

💉 The nurse’s priority is to stop the IV immediately to prevent further tissue damage and extravasation.

💉 The affected limb should be elevated to promote venous return, and warm or cold compresses applied depending on the fluid type (warm for non-vesicant, cold for vesicant).

💉 A new IV line must be started at a different site, preferably on the opposite extremity, to continue therapy safely.


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2 :

Hint : ⚠️ Insulin = units, not mL!

Correct Answers:

  • The TB syringe is calibrated in mL, not units, which can cause a medication error


Rationale :

💉 Tuberculin (TB) syringes are calibrated in milliliters (mL), while insulin syringes are calibrated in units, which are not interchangeable.

💉 Using a TB syringe for insulin administration can lead to a 10-fold dosing error, resulting in severe hypoglycemia or death.

💉 Insulin must only be measured using a U-100 or U-500 insulin syringe, depending on concentration.

💉 This scenario highlights the importance of using the right equipment for the right medication to prevent medication errors.


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3 :

Hint : 💡 Topical absorption depends on time, area, hydration, and strength of the drug.

Correct Answers:

  • Duration of contact with the skin
  • Size of the affected area
  • Hydration of the tissues
  • Drug concentration


Rationale :

🌿 Duration of contact with the skin

🌿 The longer the medication remains in contact with the skin surface, the greater the opportunity for the drug molecules to diffuse through the epidermis and reach systemic circulation.

🌿 Medications applied for extended periods—such as transdermal patches (e.g., fentanyl, nitroglycerin)—provide continuous absorption and maintain a stable therapeutic blood level.

🌿 Conversely, removing the medication too soon reduces the dose absorbed and may make the therapy ineffective.

🌿 This principle underscores the importance of following timing instructions precisely for percutaneous or transdermal applications.

🌿 Size of the affected area

🌿 The total surface area available for application directly affects the rate and amount of absorption. Larger areas allow for more medication molecules to cross through the skin barrier.

🌿 For example, applying a topical corticosteroid to a large surface area increases systemic absorption and risk for side effects compared to application on a small area.

🌿 Nurses must apply medication only to the prescribed region, as covering more skin may lead to overdosage or systemic toxicity.

🌿 The nurse should also ensure that the medication is spread evenly and thinly to ensure uniform absorption.

🌿 Hydration of the tissues

🌿 Well-hydrated skin has greater permeability because moisture softens the stratum corneum, allowing medication molecules to pass through more easily.

🌿 Dry or cracked skin can create an irregular barrier, resulting in inconsistent or decreased absorption.

🌿 For optimal results, some topical medications are applied after bathing when the skin is warm and hydrated, improving uptake.

🌿 Nurses should educate patients that maintaining skin hydration and integrity enhances the effectiveness of percutaneous drugs.

🌿 Drug concentration

🌿 A higher drug concentration creates a stronger diffusion gradient, allowing more medication to move from the surface into deeper tissue layers.

🌿 For example, a 2% hydrocortisone cream provides greater absorption than a 0.5% formulation when applied to the same area for the same duration.

🌿 However, higher concentrations can also increase the risk of local irritation or systemic effects, especially with potent drugs.

🌿 Nurses should always apply medications according to the prescribed concentration and caution patients against using more than directed, as “more” does not mean “better.”


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4 :

Hint : 🌬️ Quick, deep breath = effective DPI delivery

Correct Answers:

  • “I’ll take a quick, deep breath to inhale the powder medication.”


Rationale :

💉 Dry-powder inhalers (DPIs) deliver medication that depends on inspiratory effort, requiring a rapid, deep inhalation to disperse the powder into fine particles for lung deposition.

💉 The client should exhale fully first, place lips around the mouthpiece, and then inhale quickly and deeply through the mouth.

💉 Unlike metered-dose inhalers (MDIs), DPIs do not require shaking or hand-breath coordination, and the medication is breath-activated.

💉 Proper DPI use ensures that the medication reaches the lower airways, improving bronchodilation and therapeutic effect.


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5 :

Hint : 🩸 Use 18G for blood — big vein, fast flow

Correct Answers:

  • 18G


Rationale :

💉 Blood transfusions require a large-bore catheter (18- or 20-gauge) to allow rapid flow of blood products and reduce hemolysis risk.

💉 An 18-gauge catheter is ideal for adults, ensuring the transfusion proceeds efficiently without clot formation or mechanical damage to red blood cells.

💉 Smaller catheters (22G or 24G) are typically used for children or patients with fragile veins, but they slow the infusion rate and increase clot risk.

💉 Before transfusion, the nurse must verify the order, check crossmatch compatibility, and monitor for transfusion reactions during the first 15 minutes


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6 :

Hint : 👃 Prolonged nasal spray use = rebound congestion

Correct Answers:

  • “You may be experiencing rebound congestion from overuse of the nasal spray.”


Rationale :

💊 Overuse of topical nasal decongestants (such as oxymetazoline or phenylephrine) for more than 3–5 days can cause rhinitis medicamentosa, also known as rebound congestion.

💊 The medication causes initial vasoconstriction, but prolonged use leads to rebound vasodilation, worsening nasal stuffiness when the drug wears off.

💊 The nurse should advise the client to gradually discontinue the spray and consider alternative treatments such as saline nasal sprays or corticosteroid sprays for chronic congestion.

💊 Patient education should include proper use of OTC drugs and avoiding dependency on short-term decongestants.


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7 :

Hint : ❤️ Stop, assess vitals, and elevate legs during vagal reaction

Correct Answers:

  • Stop the procedure, assess the client’s heart rate and blood pressure, and position the client supine with legs elevated


Rationale :

💊 The client is showing signs of a vasovagal response (nausea, dizziness, pallor, diaphoresis) due to stimulation of the vagus nerve during rectal insertion.

💊 The first nursing action is to stop the procedure immediately to prevent syncope and injury.

💊 The nurse should assess vital signs (especially heart rate and blood pressure) and position the client supine with legs elevated to improve venous return and cerebral perfusion.

💊 Once stable, the nurse can explain the reaction, document the event, and notify the provider before proceeding with future rectal medications.


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8 :

Hint : 🩹 Clean, dry skin = best absorption for patches

Correct Answers:

  • I will clean and dry the the area before applying the patch


Rationale :

💊 For transdermal patches, clean and dry skin ensures proper adhesion and consistent absorption of the medication.

💊 The site should be free of oils, lotions, or moisture, which can interfere with patch adherence and drug delivery.

💊 The nurse should teach the client to rotate application sites with each new patch to prevent skin irritation and buildup of medication in one area.

💊 The old patch must be removed and disposed of properly before applying a new one to avoid accidental overdose.


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9 :

Hint : ⚡ Capsules act faster — dissolve quickly in the GI tract

Correct Answers:

  • Capsules have higher bioavailability and act more quickly


Rationale :

💊 Capsules contain medication in powder or liquid form encased in a gelatin shell, which dissolves rapidly in the stomach or intestines.

💊 This allows for faster absorption and quicker onset of action compared to compressed tablets, which must disintegrate before dissolving.

💊 Capsules also mask unpleasant tastes or odors, improving patient compliance, especially in those sensitive to bitter medications.

💊 However, capsules should never be split or crushed, as this alters the drug’s release properties and effectiveness.


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10 :

Hint : 💉 PPD = 1 mL TB syringe, 26–27 gauge, 15° angle

Correct Answers:

  • 1 mL tuberculin syringe with a 26–27 gauge needle


Rationale :

💊 A PPD (purified protein derivative) test for tuberculosis is administered intradermally, requiring precise small-volume measurement (0.1 mL).

💊 The correct equipment is a 1 mL tuberculin syringe with a 26–27 gauge, ⅜- to ½-inch needle, inserted at a 15° angle with the bevel up.

💊 This technique forms a small, raised wheal or bleb, indicating correct intradermal placement.

💊 Larger syringes or needles are inappropriate because they deliver medication too deeply, invalidating the test result.


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Total Questions: 10

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